If I am correct the answer would be iron and nickel.
Answer:
A family in the periodic table is a group of related elements.
Explanation:
Answer is: 2H, 1S, 4O, 1Ba, 2Cl or 2,1,4,1,2.
Number of atoms must
be the same on left and right side of balanced chemical reaction according to t<span>he </span>law of conservation of mass<span> or </span><span>principle of mass conservation.
</span>There are two hydrogen atoms, one sulfur atom, four oxygen atoms, one barium atom and two chlorine atoms in this chemical reaction.
Well, if you are moving forward in a direction, then your velocity is your speed with the direction you are moving in. To calculate velocity, you divide your distance traveled by the time it took to travel that distance and you add your direction to it.
So to conclude, 300/100= 3 m/s South
Correct answer- B the electrons every two elements are arranged in energy levels: a maximum two electrons in the first level. ((( i thinkkk )))
